reg master data load

I am getting error when i am loading 0account masterdata.

error:

infoobject/bic/z_hyp_act contains non alpha compliant value 1000.

If i go for help....Below msg is displayed

Diagnosis

The system checked whether the loaded InfoObject value conforms to the conversion exit.The check failed.

For example:

The value '1' was loaded into an InfoObject with alpha exit, even though the value '0000000001' was expected.

System response

The load process has failed or the erroneous records are displayed in the monitor. This does not depend on how error handling is set up.

Procedure

Find out why the data does not conform to the conversion exit, and, if possible, correct the cause. Possible causes are errors in Business Content or an error in a customer exit in the source system.

If you cannot correct the problem, you have the option of removing the conversion exit on the InfoObject. However, since the system has already been converted, duplicates appear in the system again.

Can any one help me to rectify the error.

Thanks in advance